<template>
  <!-- 登录页面的整体盒子 -->
  <div class="login-container">
    <!-- 登录的盒子 -->
    <div class="login-box">
      <!-- 标题的盒子 -->
      <div class="title-box"></div>
      <!-- 登录的表单区域 -->
      <el-form :model="loginForm" :rules="loginRules" ref="form">
        <!-- 用户名 -->
        <el-form-item prop="username">
          <el-input v-model.trim="loginForm.username" placeholder="请输入用户名" />
        </el-form-item>
        <!-- 密码 -->
        <el-form-item prop="password">
          <el-input v-model.trim="loginForm.password" type="password" placeholder="请输入密码" />
        </el-form-item>
        <!-- 按钮区域 -->
        <el-form-item>
          <el-button type="primary" class="login-btn" style="width: 100%" @click="getLogin">登录</el-button>
          <el-link type="info" @click="$router.push('/reg')">去注册</el-link>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>
import { loginAPI } from '@/api'
export default {
  name: 'Login',
  data () {
    return {
      // 获取表单内容
      loginForm: {
        username: '123haha',
        password: '111111'
      },
      // 验证规则
      loginRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { pattern: /^[a-zA-Z0-9]{1,10}$/, message: '用户名必须是1-10位的字母数字', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { pattern: /^\S{6,15}$/, message: '密码必须是6-15位的非空字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    // 登录
    async getLogin() {
      // 整体校验
      this.$refs.form.validate(async valid => {
        if (!valid) return
        try {
          // 调接口发请求
          const { data } = await loginAPI(this.loginForm)
          await this.$store.dispatch('actionSetToken', data.token)
          console.log(data)
          if (data.code === 0) {
            this.$refs.form.resetFields()
            this.$message.success(data.message)
            this.$router.push('/')
          }
        } catch (err) {
          this.$message.error(err.message)
        }
      })
    }
  }
}
</script>

<style lang="less" scoped>
.login-container {
  background: url('~@/assets/images/login_bg.jpg') center;
  background-size: cover;
  height: 100vh;

  .login-box {
    width: 400px;
    height: 270px;
    background-color: #fff;
    border-radius: 3px;
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    padding: 0 20px;
    box-sizing: border-box;

    .title-box {
      height: 60px;
      background: url('~@/assets/images/login_title.png') center no-repeat;
    }
  }
}
</style>
